Combined



May 26, 1931. E. STEVENSON 1,806,768

COMBINED TYPEWRITING AND COIPUTING URINE Filed July 18, 1925 7/71/00 77/" Mam Patented May 26, 1931 UNITED STATES PATENT oFFIcE ERNEST STEVENSON, OF WEST RAVEN, CONNECTICUT, -ASSIGNOR, BY MESNE ASSIGN- LCENTS, T ELLIOTT-FISHER (DMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE COEBINEDIYPEWRITING AND CQMIPUTING MACHINE Application filed July 18,

is herein disclosed as'applied to a machine' located beneath thetypewriter.

of the Underwood-Hanson type in which indexing pins or devices are set up at the operation of the numeral-keys, and the numbers so indexed are subsequently run into a totalizer or register, an example of this class of machine being the well-known Underwood bookkeeping machine, which is illustrated in the patent to Minton, N 0. 1,280,065, dated September 24, 1918, and other patents.

In machines such as disclosed in said patent, the number-keys are effective, when the carriage reaches the computing zone, to set, by means of suitable key-setting mechanism, indexins carried by in-bars advanced one a er another to e ective position by denomination-selecting mechanism actuated by the carriage. When such selecting mechanism completes the indexing operation, the pin-bars and the usual number wheels to which they are connected may be actuated by a general operator in accordance with the setting of the index-pins. Such denomination-selecting mechanism in-. cludes denominational jacks actuated by tappets moving with the carriage, and a series of thrust-rods or links driven by the denominational jacks are connected to the computing mechanism within a housing or case Machines of this character are usually made in two separable sections, namely, a typewritersection and a.computing-section, the latter including a case upon which the typewriter is detachably secured. It becomes necessary occassionally-to remove the typewriter from the computing-case to gain access to the mechanism contained therein, and such removal requires detachment of the jackdriven thrust-rods.

Heretofore it has been thewpractice to attach the thrust-rods to the computing mechanism and to the typewriter by various means necessitating taking the rods off the machine before lifting the typewriter from the computing-case.

To overcome this disadvantage, the pres 1925. Serial No. 44,451.

ent invention provides means whereby the thrust-rods may be readily released from their working osition without takin them 011", the rods being simultaneouslyjshi ted to a convenient position at the rear of the com puting case and supported in such position.

' One of the features of the present inven tion is the provision of a ide-frame for the thrust-rods, said frame eing swingably mounted on the casing of the computing mechanism and normally swung. to position to bring the thrust-rods in working osition relativel to the denominational jac s. By thus swingably sup orting the rods, they may be readily shi ed to the rear of the machine where they are out of the way when lifting the typewriter from the computing case.

Another feature of the invention is the provision of clamping or holding means associated with the typewriter for detachably securing the guide frame in position to'render the jacks effective on the rods, the latter being automatically released from working position upon swinging the guide-frame free of its securing means. I

A further feature of the invention is the provision of stop means for determining the position of the guide-frame when the same has been swung to position to-free the thrustrods from the typewriter.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a side elevation of a portion of the rear of an adding and computing machine disclosing the invention applied thereto, portions of the mechanism being broken away for clearness of illustration.

Figure 2 is a similar view, showing the thrust-rod guiding frame thrown backwardly to released position against a stop.

Figure 8 is a rear view of the denominationai jacks and the guiding frame for the thrust-rods. 4

Figure 4 is a top plan View of Fi ure 2, with a portion of the jack-housing token away to show the pin-receiving slots or clamps and the guideways for the thrustrods.

elude side plates 3 In machines of the Underwood-Hanson type, the typewriter-carriage is provided at its rear with one or more denominationselectors 11 pivotally and slidingly mounted on a rod 12 and usually held in adjusted position therealong by means of a notched rod 13. Each denomination-selector is normally in an ineffective depressed position, but as the carriage 10 in its letter-feeding movement enters a computing zone, a coneshaped roller 14 on the selector 11 will ride up on the tapered end of a zone-controlling roller. 15 extending across the computing zone, and the denomination-selector 11 will be elevated to effective position, as illustrated in Figure 1, so that a tappet 16, carried on the upper face thereof, may cam up one after another the forward ends 17 of denominational jacks 18 pivoted at 19 in a housing 20, carried upon a bracket 21 fixed to the typewriter 22. The rear ends 23 of the jacks 18 overlie the upper ends 24 of thrust-rods or links 25, and upon actuation of the jacks 18 by the tappet 16, the thrustrods or links 25 will be depressed, and, through suitable mechanism, will advance the usual pin-carrying bars to pin-setting positions. The lower ends 26 of the thrustrods 25 are usually provided with couplingheads 27 pivoted at 28 to the usuallevers 29 extending through suitable openings in a casing 30, enclosing the computing mechanism, and the inner end of each lever 29 is operatively associated with the usual pincarrying bars, not shown in the present application, but which may be of the character such as illustrated in the Minton patent to which reference has been made.

Whenever it becomes necessary to remove the typewriter 22 from the computing case 30, it is desirable to be enabled to quickly release the upper ends 24 ofthe thrust'rods 25 from their working position without the necessity of dismounting the thrust-rods from their linlrages. Applicant therefore provides a thrust-rod guide-frame 31 pivotally mounted at 32 between the arms 33 of a bracket 34 fixed to the outer face 35 of the casing 30 by any suitable means, such as screws 36. The uide-franie 31 may insecured together by means of bridge-plates 38. The upper or free end of the guide-frame 31 has a connecting plate 39 extending between the inner walls 40 of the side lates 37. The plate 39 is provided with a 'ne of perforations 41 for the reception of the up er ends 24 of the thrust-rods 25, so that as t e guide-frame 31 is swung forwardly or rearwardly about its pivot 32, the thrust-rods 25 are carried therewith, and the upper ends of said rods are always maintained in alignment with one another by reason of the perforations 41. For holding the ends 24 of the thrustrods in working position beneath the jacks 18, there is provided a plate or shelf 42, having a pair of slots 43 forming resilient gripping fingers or clips 44. The bottom of each of the slots 43 may be cut away, as indicated at 45 to provide the requisite resiliency for the clips 44. Pins 46, extending from the lower face 47 of the connecting plate 39, are received in the slots 43 when the. guide-frame is swung to working position, and the gripping action of the resilient clips 44 effectively maintains the pins 46 within the slots 43, thus maintaining the upper ends 24 of the thrust-rods 25 in cooperative relation with their respective jacks 18. The slots 43 are preferably rounded at 48 to conform to the shape of the pins 46, so that said pins are snapped into holding position by the resilient action of the grlpping fingers or clips 44. It will be readily understood that when the pins 46 are held in their respective slots, the free ends of the denominational jacks are in position to drive the thrust-rods 25 downwardly and thereby actuate the computing mechanism contained within the casing 30. It will also be apparent that if for any rea son it becomes necessary to remove the typecwriting machine 22-from said computlng casing, the guide-frame 31 may be swung rearwardly about its pivot 32 to disengage the pins 46 from the slots 43, thus com lctely freeing the thrust-rods and guide- 'ramc from the typewriter.v It is desirable to provide means for limiting the rearward swing of the guide-frame 31 in order to prevent said guide frame from swinging too far away from the rear of the machine. For this purpose stops 49 are provided at the lower end of each of the side plates 3? beneath the pivot 32. Referring to Figure 2, it will be seen that upon swinging the guide-frame 31 outwardly, the stops 49 en gage the outer face 35 of the computing casing 30 thus maintaining said guide-frame 31 in an upwardly inc ined position, free of the typewriter 22. The shelf 42 has notches 50 in the forward edge thereof for the reception of the rods '35. Upon swinging the guide-frame 31 to engage the pins 46 with the slots 44, the thrust-rods 25 are entered in the notches 50.

In Figure l of the drawings, there is ii: lustrated one type of fastening device which may be utilized as a means for detachably securing the typewriter to the computing case, although any other suitable means may be employed for this purpose as it forms no part of the present invention. Said. fastenm device may include a strap 51, having a lip 52 engaging the under face of a turned-in ledge 53 adjacent the top of the casing 30, the upper end of the strap having a set screw 54 for engagement against the frame of the ty ewriter. A mounting section or base 55 15 sometimes interposed between the typewriter 22 and the computing case 30.

It will be seen that upon swinging the guide-frame 31 to the rear to release the thrust-rods 25, and unfastening the typewriter, the latter may be readily removed from the computing case, the thrust-rods being thus conveniently dis osed in an inclined position at the rear 0 the computing case.

Variations may be resorted'to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a combined typewriting and computing machine having a case for the computing mechanism and a typewriting machine detachably mounted thereon, and having a letter-feeding platen-carriage, and carriage actuated denomination selecting mechanism including a plurality of denominational jacks, the combination with a a plurality of rods having their lower ends connected to the computing mechanism of a bracket fixed to the computing case, a frame pivoted on said bracket for swinging movement to or away from the typewriter, the upper end of the frame including means for detachably securing said frame to the typewriter, and guide-means for the ends of the rods, whereby to maintain said ends in position to be actuated by the jacks, the lower end of said frame including extensions directed toward the computlng case below the pivot of said frame, so that when the latter is swung away from the typewriter, said extensions engage the face of said computing case and thereby limit the rearward swing of said frame.

2. In a typewriting and computing machine, a series of denominational jacks, a series of rods connected with the computing mechanism to be operated by the jacks, a bracket fixed to the casing of the computing mechanism near the lower ends of the rods, and a rack mounted parallel with the rods and pivoted to the bracket, effective to locate the upper ends of the rods with reference to the jacks.

3. In a combined typewriting machine and computing machine capable of being disassembled one from the other, a series of denominational jacks supported by the typewriting machine, a set of rods connected with the computing machine, operable by the jacks, a swingable frame pivotally supported at its lower end by computing machine, said frame having a disassembling rack at its upper end normally spacing and holding the rods in alignment with said jacks, and means to secure the upper end of the frame to the typewriting machine to hold the rods in operating position with reference to the jacks when the machines are assembled, said frame with the the entire set of rods forming a unit swingable outwardly from said operating position for disassembling.

4. In a combined typewriting machine and computing machine capable of being disassembled one from the other, a series 0 denominational jacks supported by the typewritin machine, a set of rods connected with t e computing machine, operable by the jacks, and a frame pivotally supported at its lower end by the computing machine, means included in said frame to hold the rods spaced one from the other to correspond with the spacing of the jacks, and said means releasably securing said rods in operating position with reference to the jacks, said frame with the entire set of rods forming a unit swingable outwardly from said operating position for disassemblin 5. In a combined typewriting mac ine and computing machine capable of being disassembled one from the other, a. series of denominational jacks, a set of rods connected with the computing machine to be operated by the jacks, a disassembling frame, pivoted at its lower end to said computing machine, substantially enclosing the rods throughout their length and a guiderack forming the upper end of the frame perforated to receive the upper ends of the rods and effective to guide the entire set into operative relation with their respective jacks, and out of operative relation therewith for disassembling.

6. In a combined typewriting and computing machine capable of being disassembled one from the other, a series of denominational jacks supported by the typewriting machine, a set of rods pivoted to the computing machine, operable by the jacks, and a disassembling unit, swingable toward and outwardly from the typewriting machine, including a frame for housing the rods coextensive with the length thereof, said frame including a rack for spacing and holdin the upper ends of the rods, said frame aving a pivotal connection near its lower end with said computing machine, the lower end of the frame forming a stop to move against the computing machine to limit the outward disassembling swing of said unit.

7. In a combined typewriting machine and computin machine capable of being disassemble one from the other, a series 0 denominational jacks, a set of rods pivoted to the computing machine and o erable by said jacks, a movable disassemb mg frame to hold said rods and move the same into and out of operating position with reference to said jacks, and a stationary member, supported by said typewriting machine for aligning the rods with said acks, including means for releasably securin the rods in said operating position, sai frame efiective to swing the entire set of rods out of said operating osition for disassembling.

8. In a com ined typewriting machine and computing machine capable of being disassembled one from the other, a series of denominational jacks, a set of rods pivoted to the computing machine and operable by said jacks, a movable disassembling frame to hold said rods and move the same into and out of operating position with reference to said jacks, and a stationary plate, supported by and extending rearwardly from said typewriting machine, including means for s acing and aligning the rods with said jac s and including resilient clips engaging said frame for releasably securing the rods in said operating position, said frame effective to swing the entire set of rods out of said operating position for disassembling.

9. In a combined typewriting machine and computing machine capable of being disassembled one from the other, a series of denominational jacks, a set of rods pivoted to the computing machine and operable by said jacks, a movable disassembling frame to move the rods into and out of operating position with reference to the jacks, and a stationary plate, supported by said typewriting machine, having a notched surface to space the rods to correspond with the spacing of said jacks, the plate having resilient clips formed therein to releasably hold said frame, the frame being swingable from said clips to remove the rods from said operating position for disassembling.

ERNEST STEVENSON. 

